feat: add Trailer Pre-Roll and Feature Pre-Roll bumpers

Adds two optional IIntroProvider bumper slots, mirroring CherryFloors'
cinema mode plugin: a "Trailer Pre-Roll" played before the trailer block
and a "Feature Pre-Roll" played right before the movie/episode. Each is
configured by picking an existing Jellyfin Movie library, from which a
random Movie is injected as the bumper.

Bump version to 1.0.0.5.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

build.yaml

@@ -1,5 +1,5 @@
 ---
-version: 1.0.0.4
+version: 1.0.0.5
 name: CinemaTrailers4Jellyfins
 guid: b581493e-1046-40ed-b6dc-cb8027624984
 description: >
@@ -12,15 +12,10 @@ category: General
 owner: 514mart
 targetAbi: 10.11.0.0
 changelog:
-  - Add TV show trailer downloads — separate TMDB sources (Airing Today, On The Air,
-    Popular, Top Rated) and a "Max TV show trailers per run" cap independent from
-    movies; set either cap to 0 to skip that category entirely
-  - Add trailers before TV episodes via IIntroProvider — only the first episode a
-    user watches each day gets trailers, picked using the show's genre/rating for
-    filtering
-  - Movie and TV trailers are now kept separate — movies only ever get movie
-    trailers and episodes only ever get TV show trailers, via a tag written to each
-    trailer's NFO at download time
+  - Add Trailer Pre-Roll and Feature Pre-Roll bumpers via IIntroProvider — pick
+    existing Jellyfin Movie libraries in settings and a random movie from each is
+    played before the trailer block ("Now Playing") and/or right before the
+    feature ("Feature Presentation"); both are independent and disabled by default
 
 dotnetProjects:
   - name: Jellyfin.Plugin.CinemaTrailers4Jellyfins